Orthopedic cements comprising a barium apatite contrast agent
First Claim
1. A method of producing a composition that sets into a solid product, said method comprising:
- combining;
(a) a setting fluid;
(b) dry reactants; and
(c) a contrast agent comprising a particulate barium apatite population having an average diameter ranging from about 200 to about 400μ
;
in a ratio sufficient to produce said composition.
4 Assignments
0 Petitions
Accused Products
Abstract
Methods are provided for producing settable compositions, e.g. pastes or clays, that set into calcium phosphate products and include a barium apatite contrast agent. In the subject methods, dry reactants and a setting fluid are combined with a barium apatite contrast agent, and the combined reactants are mixed to produce the settable composition. A feature of the invention is that the barium apatite contrast agent is particulate agent in which the particles have a size sufficient to provide a “peppered” appearance to the cement when imaged, such as when radiographically imaged. Also provided are the compositions themselves as well as kits for preparing the same. The subject methods and compositions produced thereby find use in a variety of applications, including hard tissue repair applications, such as vertebroplasty applications.
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Citations
18 Claims
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1. A method of producing a composition that sets into a solid product, said method comprising:
-
combining;
(a) a setting fluid;
(b) dry reactants; and
(c) a contrast agent comprising a particulate barium apatite population having an average diameter ranging from about 200 to about 400μ
;
in a ratio sufficient to produce said composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A kit for use in a preparing a flowable composition that sets in an in vivo fluid environment into a calcium phosphate product, said kit comprising:
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(a) dry reactants comprising a calcium source and a phosphate source;
(b) a setting fluid or components for producing the same; and
(c) a contrast agent comprising a particulate barium apatite population having an average diameter ranging from about 200 to about 400μ
.
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15. A packaged calcium phosphate cement, said packaged cement comprising:
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a tubular element separated into a first compartment and at least one additional compartment by a removable barrier;
(i) dry reactants comprising a source of calcium and phosphate present in said first compartment;
(ii) a setting fluid or components thereof present in said at least one additional compartment; and
(iii) a contrast agent comprising a particulate barium apatite population having an average diameter ranging from about 200 to about 400μ
present in either said first compartment, said at least one additional compartment or in a second additional compartment. - View Dependent Claims (16, 17, 18)
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Specification